Architecture & Framework Flashcards
7 cards from real CTA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Architecture & Framework flashcards as text
When architecting a TestStand system to minimize test execution overhead, which code module adapter typically offers the lowest per-call latency?
Answer: C/C++ DLL Adapter
The C/C++ DLL adapter has the lowest per-call overhead because it calls native compiled code without interpreter or runtime marshaling layers.
What is the role of the 'Sequence Context' object passed to code modules called by TestStand?
Answer: It grants access to the TestStand engine, current execution, and sequence data
The Sequence Context object is the primary interface giving code modules access to the TestStand engine, running execution, locals, parameters, and step properties.
In TestStand's property hierarchy, which object's properties take the lowest precedence when property inheritance is resolved?
Answer: Station-level type properties
Station-level type properties serve as the base default; they are overridden by sequence file-level properties, then step type properties, and finally step instance properties at highest precedence.
Which TestStand mechanism allows a sequence to call another sequence that is not known at design time?
Answer: Indirect Sequence Call with a string variable for the sequence name
By supplying a string variable containing the sequence name to a Sequence Call step, TestStand resolves and calls the target sequence dynamically at runtime.
What is the purpose of the 'Cleanup' step group in TestStand sequences?
Answer: It runs after the Main step group regardless of pass/fail/error outcomes
The Cleanup step group always executes after Main steps complete, whether the sequence passed, failed, or encountered an error, ensuring resource release.
When using TestStand's parallel execution model, how should you handle an instrument that cannot be used by multiple test sockets simultaneously?
Answer: Use a Synchronization step with Resource Locking to serialize access
Resource Locking via Synchronization steps serializes access to shared instruments, allowing only one socket at a time to use the resource.
Which TestStand sequence file element defines the data types and default values for all step types used within that file?
Answer: Type Definitions section of the sequence file
The Type Definitions section of a sequence file stores local copies of step type specifications, including property schemas and default values, for steps used in that file.